Sealing reinforcing structure for roller bearing seat of belt conveyor

Abstract

The utility model relates to the technical field of belt conveyors, in particular to a belt conveyor roller bearing seat sealing reinforcing structure, which is characterized in that a retainer ring is sleeved outside a neck ring in a fixed structure mode, a movable ring is sleeved outside a roller shaft on the inner side of the neck ring, and a runner is arranged between the movable ring and the neck ring; the retaining ring is sleeved with the buckle cover, the buckle cover is connected with the movable ring in a fixed structure mode, an oil cavity B is defined by the buckle cover, the retaining ring, the movable ring and the neck ring, the oil cavity B is communicated with the oil cavity A through a flow channel, and lubricating grease is arranged in the oil cavity B; according to the structural design, the oil cavity A, the oil cavity B and the runner form a closed space through the first sealing ring and the second sealing ring, the closed space is used for eliminating a gap between the movable ring and the neck ring, impurities such as coal slime can be prevented from permeating into the bearing seat through the runner, the structural leakproofness is improved, and the service life of the bearing seat is prolonged. And the lubricating effect can be achieved, and the service life is prolonged.

Description

Technical field:

[0001] The present application relates to the technical field of belt conveyors, and in particular to a seal reinforcement structure for a belt conveyor roller bearing seat. Background technology:

[0002] The Chinese utility model patent with application number 202320187233.1 - a double-sealed transmission roller or a redirecting roller, includes a cylinder on the roller shaft, and the two ends of the roller shaft are connected to the bearing seat. The bearing seat includes a bearing seat body, and the bearing seat body has a bearing. There is a transparent cover on the inner side of the bearing seat body, and a skeleton oil seal is provided at the contact between the transparent cover and the roller shaft. A seal composed of an outer sealing ring and an inner sealing ring is added to the inner side of the bearing seat body. The contact surfaces of the inner sealing ring and the outer sealing ring are both interlocking convex and concave rings. There are multiple positioning bolt holes perpendicular to the roller shaft along the circumference on the outer surface of the hoop surface at the other end of the inner sealing ring, and fixing bolts are screwed into the positioning bolt holes.

[0003] Paragraph 0016 of the patent specification mentions that "even if the lithium-based grease seeps out from the wear between the skeleton oil seal 4 and the roller shaft 8, since the lithium-based grease is in solid state, the lithium-based grease stays in the wall between the outer sealing ring 3 and the inner sealing ring 2, slowing down the leakage." The lithium-based grease in this patent will seep out between the skeleton oil seal and the roller shaft, which will seriously affect its sealing performance in the long run and affect the service life of the bearing seat; and the gap formed between the outer sealing ring and the inner sealing ring also facilitates the infiltration of impurities such as coal slime in the coal mine environment, causing wear of the sealing ring, which in turn affects the sealing performance. Utility model content:

[0004] In order to solve the above technical problems, the utility model provides a belt conveyor roller bearing seat seal reinforcement structure, which solves the technical problem that the gap between the skeleton oil seal and the roller shaft will cause the lithium-based grease to seep out, or facilitate the infiltration of impurities such as coal slime in the coal mine environment, which will seriously affect its sealing performance in the long run and affect the service life of the bearing seat. In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] The belt conveyor roller bearing seat seal reinforcement structure includes:

[0006] The roller shaft and the bearing seat, both ends of the roller shaft are connected to the bearing seat, and an end cover is arranged on the outside of the bearing seat;

[0007] Neck ring, which is sleeved on the outside of the drum shaft and connected to the bearing housing in a fixed structure. The neck ring is provided with an oil cavity A and an installation cavity near the side wall of the drum shaft;

[0008] A first sealing ring, which is sleeved on the outside of the drum shaft and located in the installation cavity;

[0009] A retaining ring is sleeved on the outside of the neck ring in a fixed structure manner;

[0010] A moving ring, which is sleeved on the outside of the roller shaft inside the neck ring, and a flow channel is provided between the moving ring and the neck ring;

[0011] The buckle cover is sleeved on the outside of the retaining ring and connected to the moving ring in a fixed structure. The buckle cover, the retaining ring, the moving ring and the neck ring form an oil chamber B. The oil chamber B is connected to the oil chamber A through a flow channel. Lubricating grease is arranged in the oil chamber B.

[0012] The second sealing ring is sleeved between the retaining ring and the buckle cover.

[0013] Furthermore, the dynamic ring includes a sleeve, the outer peripheral surface of the sleeve is provided with a connecting ring in a fixed structure manner, and the connecting ring is provided with a groove near the side wall of the neck ring;

[0014] The neck ring is provided with a protrusion matched with the groove, and a flow channel is formed between the groove and the protrusion.

[0015] Furthermore, the buckle cover includes a cover plate, the cover plate is connected to the connecting ring by bolts, and a circular ring is arranged on the outer edge of the cover plate in a fixed structure manner, and the circular ring extends to the outside of the retaining ring;

[0016] The inner wall of the ring is provided with a mounting groove for accommodating the second sealing ring.

[0017] Furthermore, an oil nozzle communicating with the oil chamber B is provided on the side wall of the annular ring.

[0018] Further, a spacer sleeve is provided between the neck ring and the drum shaft;

[0019] The first sealing ring is arranged outside the spacer sleeve.

[0020] The beneficial effect of the utility model is that grease is arranged in the flow channel to eliminate the gap between the dynamic ring and the neck ring, which can prevent impurities such as coal slime from penetrating into the interior of the bearing seat through the flow channel and increase the airtightness of the structure, and can also play a lubricating role and increase the service life.

[0021] The oil chamber A and the oil chamber B are provided to store grease to replenish the grease seeping out of the flow channel, thereby ensuring that the flow channel is always filled with grease and improving the sealing performance. Description of the drawings:

[0022] Figure 1 It is a schematic diagram of the structure of the utility model.

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the bearing seat of the utility model.

[0024] In the figure:

[0025] 1. Roller shaft, 2. Bearing seat, 3. End cover, 4. Neck ring, 5. Oil chamber A, 6. Mounting chamber, 7. First sealing ring, 8. Moving ring, 81. Sleeve, 82. Connecting ring, 9. Buckle cover, 91. Cover plate, 92. Ring, 10. Retaining ring, 11. Flow channel, 12. Second sealing ring, 13. Oil chamber B, 14. Spacer sleeve. Specific implementation method:

[0026] In order to make the purpose, technical scheme and advantages of the implementation of the utility model clearer, the utility model will now be further described in detail with reference to the accompanying drawings and the following examples so that the public can better understand the implementation method of the utility model. The specific implementation scheme of the utility model is as follows:

[0027] The belt conveyor roller bearing seat sealing reinforcement structure comprises a roller shaft 1 and a bearing seat 2. Both ends of the roller shaft 1 are connected to the bearing seat 2. An end cover 3 is arranged on the outer side of the bearing seat 2, and the end cover 3 is fastened and fixed on the housing of the bearing seat 2. A neck ring 4 is sleeved on the outer side of the roller shaft 1 and is connected to the housing of the bearing seat 2 in a fixed structure. The neck ring 4 is provided with an oil cavity A5 and an installation cavity 6 near the side wall of the roller shaft 1. A first sealing ring 7 is arranged in the installation cavity 6. The first sealing ring 7 is sleeved on the outside of the roller shaft 1 to seal the path between the roller shaft 1 and the neck ring 4.

[0028] A retaining ring 10 is sleeved on the outside of the neck ring 4 in a fixed structure manner, a moving ring 8 is sleeved on the outside of the roller shaft 1 on the inner side of the neck ring 4, and a flow channel 11 is provided between the moving ring 8 and the neck ring 4; a buckle cover 9 is sleeved on the outside of the retaining ring 10 and is connected to the moving ring 8 in a fixed structure manner, the buckle cover 9 and the retaining ring 10, the moving ring 8 and the neck ring 4 enclose an oil chamber B13, the oil chamber B13 is connected to the oil chamber A5 through the flow channel 11, and grease is provided in the oil chamber B13; a second sealing ring 12, the second sealing ring 12 is sleeved between the retaining ring 10 and the buckle cover 9, this structural design, through the first sealing ring 7 and the second sealing ring 12, the oil chamber A5, the oil chamber B13 and the flow channel 11 form a closed space, which is used to eliminate the gap between the moving ring 8 and the neck ring 4, which can prevent impurities such as coal slime from penetrating into the interior of the bearing seat through the flow channel, increase the airtightness of the structure, and play a lubricating role to increase the service life.

[0029] Specifically, the dynamic ring 8 includes a sleeve 81, and a connecting ring 82 is arranged on the outer peripheral surface of the sleeve 81 in a fixed structure manner. The connecting ring 82 has a groove near the side wall of the neck ring 4; the neck ring 4 is provided with a protrusion that cooperates with the groove, and a flow channel 11 is formed between the groove and the protrusion, and the groove and the protrusion are both annular structures.

[0030] It should be noted that the buckle cover 9 includes a cover plate 91, which is connected to the connecting ring 82 by bolts. A circular ring 92 is arranged on the outer edge of the cover plate 91 in a fixed structure manner, and the circular ring 92 extends to the outside of the retaining ring 10; an installation groove for placing the second sealing ring 12 is opened on the inner wall of the circular ring 92 to limit the second sealing ring 12.

[0031] Furthermore, the side wall of the ring 92 is provided with an oil nipple connected to the oil chamber B13 for adding grease.

[0032] A spacer sleeve 14 is arranged between the neck ring 4 and the roller shaft 1. The first sealing ring 7 is sleeved on the outside of the spacer sleeve 14 to isolate and support the neck ring 4, prevent direct contact and friction between the neck ring 4 and the roller shaft 1, thereby improving the service life of the neck ring 4 and limiting the dynamic ring 8.

[0033] The working principle and working process of the utility model are as follows:

[0034] The roller is installed on the bearing seat 2 through the roller shaft 1, and then connected to the belt conveyor frame.

[0035] In the working state, the bearing supports the roller shaft 1 to rotate in the bearing seat 2, which drives the spacer sleeve 14 and the moving ring 8 to rotate together, and the housing of the bearing seat 2 and the neck ring 4 are in a stationary state.

[0036] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "front", "back", "lower left", "upper right", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Although the present invention has been described according to a limited number of embodiments, those skilled in the art, with the benefit of the above description, should understand that other embodiments can be conceived within the scope of the present invention described thereby.

Claims

1. The belt conveyor roller bearing seat seal reinforcement structure is characterized by: include: A roller shaft (1) and a bearing seat (2), wherein both ends of the roller shaft (1) are connected to the bearing seat (2), and an end cover (3) is arranged outside the bearing seat (2); A neck ring (4), the neck ring (4) is sleeved on the outside of the roller shaft (1) and is connected to the housing of the bearing seat (2) in a fixed structure manner, and the neck ring (4) is provided with an oil chamber A (5) and a mounting chamber (6) near the side wall of the roller shaft (1); A first sealing ring (7), the first sealing ring (7) is sleeved on the outside of the drum shaft (1) and is located in the installation cavity (6); A retaining ring (10), the retaining ring (10) is sleeved on the outside of the neck ring (4) in a fixed structure manner; A moving ring (8), the moving ring (8) is sleeved on the outside of the roller shaft (1) inside the neck ring (4), and a flow channel (11) is provided between the moving ring (8) and the neck ring (4); A buckle cover (9), the buckle cover (9) is sleeved on the outside of the retaining ring (10) and connected to the moving ring (8) in a fixed structure manner, the buckle cover (9) and the retaining ring (10), the moving ring (8) and the neck ring (4) enclose an oil chamber B (13), the oil chamber B (13) is connected to the oil chamber A (5) through the flow channel (11), and lubricating grease is arranged in the oil chamber B (13); The second sealing ring (12) is sleeved between the retaining ring (10) and the buckle cover (9).

2. The belt conveyor roller bearing seat seal reinforcement structure according to claim 1 is characterized in that: The moving ring (8) comprises a sleeve (81), the outer peripheral surface of the sleeve (81) is provided with a connecting ring (82) in a fixed structure manner, and the connecting ring (82) is provided with a groove near the side wall of the neck ring (4); The neck ring (4) is provided with a protrusion that matches the groove, and a flow channel (11) is formed between the groove and the protrusion.

3. The belt conveyor roller bearing seat seal reinforcement structure according to claim 2 is characterized in that: The buckle cover (9) comprises a cover plate (91), the cover plate (91) is connected to the connecting ring (82) by bolts, a circular ring (92) is arranged on the outer edge of the cover plate (91) in a fixed structure manner, and the circular ring (92) extends to the outside of the retaining ring (10); The inner wall of the circular ring (92) is provided with a mounting groove for accommodating the second sealing ring (12).

4. The belt conveyor roller bearing seat seal reinforcement structure according to claim 3 is characterized in that: The side wall of the circular ring (92) is provided with an oil nozzle communicating with the oil chamber B (13).

5. The belt conveyor roller bearing seat seal reinforcement structure according to claim 1, characterized in that: A spacer sleeve (14) is provided between the neck ring (4) and the roller shaft (1); The first sealing ring (7) is sleeved outside the spacer sleeve (14).

6. The belt conveyor roller bearing seat seal reinforcement structure according to claim 1 or 5, characterized in that: The first sealing ring (7) is a skeleton oil seal.

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